Construction Management

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A Study of Alternative Wall Making Materials Selection Using Ahp Method
(Addis Ababa University, 2022-06-01) Behailu Workneh Tolu; Denamo Addissie (PHD)
Material selection is a complex and delicate task determined by the vast number of building material options. Likewise, multiple factors are often considered by the architect or building designer when evaluating the various categories of building materials. As a result, these sets of factors or variables often present tradeoffs that further complicate the decision-making process. To ease the material-selection process, this study examines the relevant factors or variables needed to develop a systematic and efficient material-selection system. Through the analysis of frequency data and results of the study, it has identified the potential factors that will impact designers’ decisions in their choice of wall making alternative building materials, during the design-decision making process. The application of the criteria for the quantitative evaluation and selection of the best alternative building material, using the analytic hierarchy process model, are discussed. The developed decision support system assist designers to assess their consequences in terms of whether or not a material option is likely to be best chosen over the existing conditions. The study also investigates the existing situations in the application of alternative wall making building materials. It assesses the current materials which are being used as a wall making alternative building materials, the extent of usage and barriers to use these materials. Keywords: decision making process; factors or variables; selection criteria; alternative building materials; selection framework; analytical hierarchy process (AHP)
A Study of Alternative Wall Making Materials Selection Using Ahp Method
(Addis Ababa University, 2022-06-01) Behailu Workneh Tolu; Denamo Addissie (PhD)
Material selection is a complex and delicate task determined by the vast number of building material options. Likewise, multiple factors are often considered by the architect or building designer when evaluating the various categories of building materials. As a result, these sets of factors or variables often present tradeoffs that further complicate the decision-making process. To ease the material-selection process, this study examines the relevant factors or variables needed to develop a systematic and efficient material-selection system. Through the analysis of frequency data and results of the study, it has identified the potential factors that will impact designers’ decisions in their choice of wall making alternative building materials, during the design-decision making process. The application of the criteria for the quantitative evaluation and selection of the best alternative building material, using the analytic hierarchy process model, are discussed. The developed decision support system assist designers to assess their consequences in terms of whether or not a material option is likely to be best chosen over the existing conditions. The study also investigates the existing situations in the application of alternative wall making building materials. It assesses the current materials which are being used as a wall making alternative building materials, the extent of usage and barriers to use these materials. Keywords: decision making process; factors or variables; selection criteria; alternative building materials; selection framework; analytical hierarchy process (AHP)
A Study of Alternative Wall Making Materials Selection Using AHP Method
(Addis Ababa University, 2022-06-01) Behailu Workneh Tolu; Denamo Addissie, (PhD)
Material selection is a complex and delicate task determined by the vast number of building material options. Likewise, multiple factors are often considered by the architect or building designer when evaluating the various categories of building materials. As a result, these sets of factors or variables often present tradeoffs that further complicate the decision-making process. To ease the material-selection process, this study examines the relevant factors or variables needed to develop a systematic and efficient material-selection system. Through the analysis of frequency data and results of the study, it has identified the potential factors that will impact designers’ decisions in their choice of wall making alternative building materials, during the design-decision making process. The application of the criteria for the quantitative evaluation and selection of the best alternative building material, using the analytic hierarchy process model, are discussed. The developed decision support system assist designers to assess their consequences in terms of whether or not a material option is likely to be best chosen over the existing conditions. The study also investigates the existing situations in the application of alternative wall making building materials. It assesses the current materials which are being used as a wall making alternative building materials, the extent of usage and barriers to use these materials. Keywords: decision making process; factors or variables; selection criteria; alternative building materials; selection framework; analytical hierarchy process (AHP)
A study on Improving Price Adjustment Administration in Federal Road Projects
(Addis Ababa University, 2021-06-01) Simreteab Gebremedhin; Wubishet Jekale (PhD. Eng.)
The degree of price variations referring to each specific type of construction shall be measured by specific price indices, in order to achieve more accurate results. In Ethiopian Road Authority, Price Index is commonly used for price adjustment administration in the escalation of road construction costs. This study aims to improve price adjustment administration in federal road projects. The objectives of the study report in this thesis are assessing current price indices determination practice when original source cease to publish indices, assessing reliable sources to minimize ceasing of publishing indices and developing guideline for price adjustment administration system when supplier cease to exist and replaced by new source. This research covered, the studies on improving price adjustment administration in federal road projects. Moreover, price adjustment administration when suppliers cease to published price indices were analyzed by trend, T-tests and regression analysis techniques, to obtain models to predict the future values of the new sources of indices, which was a way enabling the prediction of the future indices of a price adjustment in federal road projects. Using a detailed literature review, a quantitative data collection approach, data was collected from Ethiopian Road Authority payment certificates, to see the trend of price adjustments of key construction cost inputs (cement, bitumen, fuel and steel), National Bank of Ethiopia’s website (currency exchange ETB to USD) and different local and international road construction material suppliers’ websites. In this thesis, some descriptive statistical methods have been used for the analysis of Three DB case study projects that are completed under RSDP IV. The projects are Chole magna, Dire Dawa- Dewelle and Pawi-Junction. The result is analysed using trend, T-test and regression analysis methods. The analysis resulted that, NOC should be used as a new source for Chole magna and Dire Dawa-Dewelle projects. Producer Price Index (PPI); Petroleum from Bureau of Labour Statistics (BLS) U.S should be used for Pawi Junction-Fendkia-Ayma project. Finally, based on the analysis of the results, this research developed guideline to enable professionals to determine the new source of index using a common guideline and help to create common understanding.
A Study on Improving Project Delivery Method Selection Criteria Practice on Ethiopian Road Authority
(Addis Ababa University, 2020-09-01) Edlawit Teka; Wubishet Jekale (PhD)
Construction industry in Ethiopia is one of the fast growing industries with significant share in the GDP. It has an important contribution to the economy which involves various infrastructure developments. One of the major infrastructure elements is the road sector. Ethiopian Road authority has a long history in providing road infrastructure primarily in the country. A project delivery method (PDM) is a framework that determines the relationship and responsibilities of client, contractor and consultant. The decision to select delivery method should be based on a systematic approach that includes all available PDMs. The project under the Ethiopian Roads Authority ERA, continue to face great challenges when it comes to delivering projects by selecting the most appropriate DM for its projects. The general practice in this institution is largely depends on culture of the ERA board’ reliance on their familiarity and experience with a particular method. With this background, this study provides a comprehensive solution for this challenges of ERA. 27 criterions under four group of delivery method selection criteria are identified in this research effort. The criteria are identified through questionnaire survey from client, consultant and contractor perspectives. The result is analysed using Relative Importance Index(RII). Project actual challenges are thoroughly discussed based on 22 selected case study projects that are completed under RSDP IV and RSDP V. The analysis clarifies main challenges of ERA’s projects. The major challenges identified are: Right of way, variation orders, scope change, design change and adverse weather conditions. A sufficient set of critical issues are defined in this study and advantages/disadvantages of each delivery method is thoroughly studied with respect to the issues concentrating on the effects of PDM option on the project challenges. The study covers both the available PDMs (i.e. Design-Bid-Build (DBB), Design Build (DB). The model for selecting appropriate delivery method is developed using Multi-attribute decision tools to select a PDM in this research for case study projects. The model was verified using case study project. The model provides useful information and introduces the advantages and limitations of each PDM to the decision makers. an essential well-structured decision making process is embedded in the proposed framework of this study as a result of the analysis that is reliable and sufficient to solve the problem of selecting an appropriate PDM. Key word: - Delivery method selection criteria, project challenges, Multi Attribute Utility Theory
An Assessment on The Competitiveness of Indigenous Contractor’s In Road Construction Projects (The Case of Federal Roads)
(Addis Ababa University, 2020-12-01) Zemenu Mersha Mihret; Wubshet Jekale (PhD)
A competitive contractor is the guarantee of a project’s success with enough capacity and performance on the industry. Therefore, how to choose a competitive contractor is crucial for the clients in the sector. The Federal Democratic Republic of Ethiopia has given an emphasis on improving the quality and size of the road network and infrastructure. Concerning this, the Ethiopian Roads Authority (ERA) is one of the assigned institutions by the FDRE as an implementing agency to award and follow up the implementation of the federal road construction projects to be timely and cost-effective as well as to improve the road sector through competent indigenous contractors. However, different literatures and reports shows that the indigenous contractors are not competitive enough in ERA projects. Thus, the road sector of Ethiopia is being dependent on foreign contractors. Consequently, the country faced lack of foreign currency, lack of local job opportunities, lack of competitive local contractors, and the increment of construction cost & time and quality decrement. Therefore, the study assessed the extent of competitiveness and identified critical affecting factors. Finally, it indicates the improvement mechanisms of competitiveness for indigenous contractors which participate in ERA projects. To achieve this, the research used survey and case study research strategy with mixed approach analysis method. The source of data used for the analysis were collected from respondent documents through questionnaire survey and document review from G-1 contractor’s and ERA. Thus, 97 ICB during tender and 104 projects during actual implementation were used for analyzing the competitiveness extent of indigenous contractors. Therefore, the average competitiveness extent of indigenous contractors was 46.07% in terms of value of projects awarded whereas in terms of actual performance were 52.4%. To select the most critical indigenous contractor competitiveness affecting factors, 37 factors were identified. Among these, the identified and prioritized 12 factors are cash flow management, experience, annual turn over, shortage of finance, time planning & management, capacity of human resource, plant and equipment, price increment, crew productivity, project scope, inappropriate price offer and material availability. And also, to find competitiveness improvement mechanisms, 21 factors were identified. From these, the identified 9 improvement mechanisms are continuous capacity building, suitable government policy, efficient use of advance payment, adequate funding, utilizing foreign contractors’ best practice, competent project manager, well-defined work plan, utilizing latest technology and utilizing joint venture approach. The research further provides recommendations under what circumstances the competitiveness of indigenous contractor’s will be sustainably to Federal road construction projects. Keyword: Competitiveness, Indigenous Contractor’s, ERA, Road Construction
Assessing the Current Management Practice of Price Escalation and Its Effects on Cost Performance for Federal Public Building Projects
(Addis Ababa University, 2025-06-01) Saron Gebeyaw Alemu; Solomon Sertse Desta
In a country like Ethiopia, the construction sector is one of the major contributors tonational growth. Despite its importance in one country growth its performance, theindustry has faced many challenges during the last few years. One of the major reasons identified by different researchers is price escalation in the inputs of the construction projects. This study assesses the management practice of price escalation and its effect on the cost performance of federal public building projects. The research is descriptive and explanatory in nature and employed a mixed-method approach (both qualitative and Quantitative) with case study methodology. Four suitable cases from Universities located in Addis Ababa city were selected, and document review was used as a data collection instrument and utilized both primary and secondary data. For analyzing the collected data, the researcher used content and thematic analysis with within case analysis and cross-case analysis. In addition to these, the researcher uses four themes for analyzing the data: a description of the case, identifying the increment of major materials, labor, and equipment, assessing the effect of price escalation on each project's cost performance, and identifying the price adjustment techniques, source of price, and weightage for each project. The study investigates the impact of material price escalation on the cost performance of selected construction projects. Price increment were analyzed across various activities in both substructure and superstructure elements. In Project A, the maximum increment in the substructure was 49% for the 500 mm thick mat slab, while the superstructure’s 180 mm thick floor and roof beams experienced an escalation of 89%. For Project B, the substructure’s 200 mm thick suspended ground floor slab showed the highest increase at 85%, with a similar escalation of 88% seen in the superstructure’s 270 mm thick flat roof slab. Project C recorded an 84% increment in the foundation pad for the substructure, while the 180 mm thick roof slab led in the superstructure with an 87% increase. And also in Project D, the footing in the substructure had the greatest escalation at 91%, alongside the superstructure’s elevation column, which increased by 88%. And also, the results showed that there were different management practices used by contractors to overcome the challenges of price escalation. To enhance effectiveness, the study recommends early implementation of contractual adjustments and proactive cost management strategies in building projects. In the future, studies should focus on regularly developing construction resource price indices, analyzing the influence of finishing material cost fluctuations on project outcomes, and evaluating the contractor’s cost structure to better address non-adjustable contract elements. Key word: construction; Cost Performance; Price escalation
Assessing the significance of dedicated bike lanes for sustainable mobility in the Jemo-Mebrat Haile corridor in Addis Ababa
(Addis Ababa University, 2025-06-01) Solomon Kushu; Tesfaye Hailu
This study assesses the contribution of dedicated bike lanes to sustainable mobility within the Jemo-Mebrat Haile corridor in Addis Ababa, Ethiopia, necessitated by rapid urbanization and increasing traffic congestion. Utilized a mixed-methods approach, the research employed a purposive sampling method to survey 60 active cyclists using the corridor's bike lanes, with inclusion criteria focused on regular users. Key findings indicate that bike lanes significantly improve cycling accessibility, yet perceived safety remains a critical concern (2.8/5) due to inadequate enforcement and obstructions, acting as the strongest predictor of usage. The study also highlights gender disparities in safety perception and reveals that utilitarian motives like health/exercise (50%) and commuting (35%) are the primary drivers for bike lane use, rather than environmental concerns, alongside a critical need for infrastructure upgrades, policy enforcement, and network expansion. In conclusion, while the bike lanes are a foundational step towards sustainable mobility, their full potential is hindered by issues of safety, enforcement, and integration, leading to recommendations for strategic investments in physical barriers, enhanced policy enforcement, inclusive design, and integrated urban planning to maximize their effectiveness and sustainability in Addis Ababa and similar African urban contexts. Keywords: Urban cycling infrastructure, bike lane effectiveness, sustainable transportation, Addis Ababa, transport policy, active mobility
Assessment of Construction Material Management Practice in Federal Housing Corporation Projects
(Addis Ababa University, 2025-04-01) Huda Ahmed; Tadesse Ayalew (PHD)
Material management practice involves planning, procuring, transporting, logistics, inspection, receiving, storage, and controlling material usage in construction projects. Ineffective management, poor procurement, delayed delivery, inadequate storage, and poor control systems can negatively impact project budget and completion time. The study evaluates construction material management practices at Federal Housing Corporation projects, focusing on planning, procurement, transport, logistics, handling, storage, inspection, wastage control, challenges, stakeholder involvement, and identifying best practices, aiming to provide direction for future projects. This study involved questionnaires and document reviews to gather data from contractors, clients, site counter engineers, and FHC-hired consultants involved in FHC projects. The study reveals current practices in material handling, inventory control, and material tracking, but also highlights challenges such as market fluctuations, incomplete design, local trafficking, and wastage. Stakeholders like owners, contractors, and consultants are involved in material delivery, quality planning, and schedules. Consultants focus on continuous inspections and follow-ups for material and work progress. Finally, the study suggests that effective material management techniques improve overall handling, site delivery, and prevent unexpected price variations from impacting project budget and completion time. Keyword: Material, material management practice, construction project, FHC projects
Assessment of Price Adjustment Practice on Public Building projects; The Case of Selected Projects in Addis Ababa
(Addis Ababa University, 2025-04-01) Hamdu Nesru; Tadesse Ayalew (PhD)
The construction sector contributes significantly to a nation's GDP, which is crucial for economic growth and development in terms of the development of physical infrastructure. Ethiopia allocates a huge amount of budget for the development of public projects. Even though most public projects in Ethiopia face challenges to complete successfully within in planned budget and specified time frame. Ethiopia's building industry has faced difficulties due to market price fluctuations and inadequacies of the necessary construction inputs. The study looks into how Addis Ababa's public building projects are affected by price escalation in terms of project performance in terms of project cost and time overrun. The study employed a case study methodology to investigate how escalation affects public construction projects. Systematic sampling techniques were applied for the selection of a few best fit cases and focused on detailed contextual analysis. To measure the impact of price escalation on public building projects, construction material prices were investigated for a different period, and contract documents were reviewed and analyzed to explore the current price adjustment practice to overcome the risk of escalation by crosschecking the provision of different conditions of contract forms. The research shows that the price adjustment practices observed in the selected cases were different on the subject of selected construction inputs for the price adjustment, non-adjustable portion, permissible weighting/ coefficient, and the source of price/index. The number of representative elements for the price adjustment component, fixing non-adjustable factor, and establishment of permissible weight/coefficient was not consistent in the selected cases in this study. On the other hand, Addis Ababa Construction Bureau implements price adjustment evaluation for projects having a duration of less than 18 months in setting a new unit rate in assessing the direct cost of each work item. Assessment of Price Adjustment Practice on Public Building projects; The Case of Selected Projects Hamdu Nesru , MSc In Construction Management 2025 vi In conclusion, escalation is a major challenge facing the construction sector in Ethiopia. The high escalation rate on the price of construction materials, labor and other inputs made it difficult to complete public building projects on schedule within budget. Key Words: Construction Projects, Price Escalation, Price Adjustment
Assessment of Quality Management Practices of Selected Façade Materials
(Addis Ababa University, 2025-06-01) Hawi Bogale; Tadesse Ayalew (PhD)
This research investigates the quality management practices of wall exterior finishing materials in public construction projects in Addis Ababa. The study aims to identify commonly used finishing materials, assess the quality planning, control, and assurance the current practices applied, examine the key factors affecting their performance, and propose a guideline for improvement. To achieve these objectives, a mixed-methods approach was employed, combining qualitative and quantitative data through questionnaires, interviews, site observations, and document reviews. Triangulation was applied to ensure the reliability of findings across projects handled by the Addis Ababa Design and Construction Works Bureau, Addis Ababa Housing Development Corporation, and the Ministry of Health. The spatial scope of the study is limited to public building projects located within Addis Ababa, while the thematic scope centers on quality management practices related to wall exterior finishing materials specifically focusing on quality planning, quality control, and quality assurance. The study covers mid-rise (5-12) story public buildings constructed over the past fifteen years. Key findings reveal that durability, availability, and cost-efficiency dominate material selection, while sustainability, safety, and compatibility with other systems are often overlooked. Gaps were identified in documentation practices, material integration, and design specification clarity. Inadequate quality assurance systems and incomplete design documents prior to material procurement were common across projects. These issues have contributed to delays, increased costs, and reduced durability of exterior finishes. The study mentions strengthening design documentation, enforcing material compatibility assessments during the planning stage, and institutionalizing design review mechanisms before material procurement. These measures are vital for enhancing quality management practices and ensuring more sustainable and resilient public infrastructure in Addis Ababa. Key words: Exterior finishing materials, Quality management, public building projects, Quality planning, Quality control, Quality assurance, façade defects
Assessment of the Effectiveness of Bus Priority Systems and Their Challenges: The Case of Mexico to German Roundabout, Addis Ababa
(Addis Ababa University, 2025-06-01) Nyamouch Simon; Berhanu Woldetensae (Associate Professor)
Bus priority system are increasingly recognized as a key component of sustainable urban transportation, offering solutions to congestion and improving public transport efficiency. They are one solution that can help address the challenges faced by the bus transport system in Addis Ababa. This system improves public transport on the road network by providing buses with dedicated lanes, signal priority, and other elements that reduce travel times and improve reliability by looking at the challenges that affect urban mobility. A mixed-methods approach was employed, combining quantitative traffic data with qualitative input from stakeholders. the study aims how well bus rapid transit (BRT) corridors, dedicated bus lanes, and signal prioritization may improve bus service dependability and cut down on trip times. although concerns such as poor lane markings, enforcement gaps, and lack of public awareness persist. The study finds that well-designed bus priority schemes can reduce bus travel time by 66% and improve service reliability by 68%. Targeted recommendations emphasize improve enforcement, periodic infrastructure maintenance, enhanced public awareness, and integrated institutional collaboration. Key words: Bus priority system, road infrastructure, Sustainable Urban Transport, Challenges
Assessment on Practice of Real Property Valuation for Collateral in Addis Ababa: in the Case of Two Selected Private Commercial Banks
(Addis Ababa University, 2023-08-01) Agernew Aseres Alene; Teshome Tefera (PhD)
The main aim of the study is to assess the existing practice of real property valuation for collateral in the case of commercial banks in Addis Ababa; and investigate if the practice is consistent among the banks and to check if the practices are compatible to the internationally accepted principles. In order to accomplish this objective, the real property valuation practice for collateral in banks was considered as a real-life context as existing phenomenon; thus, appropriate case study method is deployed to investigate the aforementioned valuation related matters in the selected banks in Addis Ababa. The case study method allowed the researcher to use a variety of data using multiple data collection mechanisms that facilitated the validation of data through triangulation. It also helped the researcher avoid bias and error of data. The study assessed the local and international guidelines related to real property valuation, manuals of selected banks and Ethiopian bankers association. And, it finally benchmarking practice of real property valuation on Ethiopian banks’ guidelines is done based on the findings. The study revealed that each bank has its own valuation manual and procedures to do valuation. The amount of loan given to borrowers is not based on the market value of the property. In addition, the value of a property estimated by the banks doesn’t predict the actual market price but on securing the bank from risk as much as possible to ensure the banks can get their money back in case of default. Thus, properties are compulsorily undervalued by the lending banks and restricts the borrowing potential of investors and firms. Almost all commercial banks employ cost method due to availability of relevant comparative cost data, the difficulty in updating rental rates of buildings, and lack of stability in the Ethiopian property market. The depreciated replacement cost method of building valuation and determination of land value of land use right are not also compatible to the generally accepted standards due absence of income and expense data of subject and comparable property. The study recommended the need to minimize variation of value; revisit the existing land property law; align the standards to the generally accepted practice; develop standardized valuation framework in banks, and it is also strongly recommended that valuators need to demonstrate appropriate academic/professional qualifications, and technical competence to improve the practice.. Key words: real property, collateral, basis of valuation, valuation methods, location value
Comparative Construction Cost Analysis of Selected Design -Bid-Build and Design -Build Road Projects in Ethiopia
(Addis Ababa University, 2020-11-01) Muluken Shibru; Solomon Sertse(PhD)
Design-bid-build (DBB) and Design-build (DB) are the two common Project Delivery Systems (PDSs) that have been used widely in the international and local construction industry. For DB projects, during tendering, unlike the DBB’s contractor, the responsive design-builder offers a lump-sum amount using incomplete detailed engineering design. Although the DB PDS provides better cost certainty, that certainty may come at a higher premium as compared to DBB. This is because the design-builder allocates a certain risk factor to compensate for the design risk as well as for the lack of information to estimate the work quantities. Previous studies have demonstrated the cost certainty in favor of DB projects than DBB; however, it lacks to examine the amount of risk that comes with cost certainty. To fill this gap, this research undertakes a cost comparison between road projects delivered through the DBB and DB PDS using their cost-per-kilometer. It involves seven road projects (three DBB and four DB projects) tendered by the Ethiopian Roads Authority (ERA) from 2009 to 2017. It used a holistic multiple-case study design, primary sources of data, and document analysis. After ensuring the similarity between the projects, the DB’s bill quantities for selected pay items were multiplied by the corresponding nearby and similar DBB’s bill item-unit rates. The first, second, third, and fourth case analysis shows that DB projects exhibit a higher cost-per-kilometer and they are found to be 12.7%, 17.1%, 11.6%, and 13.5% costly than DBB projects respectively. Therefore, DB PDS can increase the project cost on average by 13.7% than the DBB PDS. This is also expected from the theoretical justification that, due to the lack of detailed information, the design-builder can be argued to include higher markup for possible risks. As a result, unless the project has a high state of urgency, the DBB PDS is the better option than DB PDS from a static cost performance perspective for the ERA context.
Comparative Construction Cost analysis of Selected Design-Bid-Build and Design-Build Road Projects in Ethiopia
(Addis Ababa University, 2020-12-01) Muluken Shibru; Solomon Sertse (PhD)
Design-bid-build (DBB) and Design-build (DB) are the two common Project Delivery Systems (PDSs) that have been used widely in the international and local construction industry. For DB projects, during tendering, unlike the DBB’s contractor, the responsive design-builder offers a lump-sum amount using incomplete detailed engineering design. Although the DB PDS provides better cost certainty, that certainty may come at a higher premium as compared to DBB. This is because the design-builder allocates a certain risk factor to compensate for the design risk as well as for the lack of information to estimate the work quantities. Previous studies have demonstrated the cost certainty in favor of DB projects than DBB; however, it lacks to examine the amount of risk that comes with cost certainty. To fill this gap, this research undertakes a cost comparison between road projects delivered through the DBB and DB PDS using their cost-per-kilometer. It involves seven road projects (three DBB and four DB projects) tendered by the Ethiopian Roads Authority (ERA) from 2009 to 2017. It used a holistic multiple-case study design, primary sources of data, and document analysis. After ensuring the similarity between the projects, the DB’s bill quantities for selected pay items were multiplied by the corresponding nearby and similar DBB’s bill item-unit rates. The first, second, third, and fourth case analysis shows that DB projects exhibit a higher cost-per-kilometer and they are found to be 12.7%, 17.1%, 11.6%, and 13.5% costly than DBB projects respectively. Therefore, DB PDS can increase the project cost on average by 13.7% than the DBB PDS. This is also expected from the theoretical justification that, due to the lack of detailed information, the design-builder can be argued to include higher markup for possible risks. As a result, unless the project has a high state of urgency, the DBB PDS is the better option than DB PDS from a static cost performance perspective for the ERA context. Keywords: Comparative Cost Analysis, Design-bid-build, Design-build, Road Project Costs, ERA, Case Study Page iv Muluken Shibru, EiABC-AAU, M.Sc. in Construction Manag
Design Management Practices in Building Design Process in the Case of Ethiopian Construction Consultant and Design Engineers
(Addis Ababa University, 2022-08-01) Samson Melesse Mamo; Tadesse Ayalew (PhD)
In recent times, the construction industry has been under pressure to improve efficiency in terms of quality improvement, timely delivery, and maintaining budget costs. The need for quality design solutions and effective processes has also incited significant emphasis in the industry. This study aimed to assess the design management practice in the building design process for Ethiopian construction consultants and design engineers in Addis Ababa. Accordingly, the study employed a quantitative research design. The study mainly used primary sources of data to collect the necessary information. It used three data collection methods, namely a questionnaire, an interview, and a document review. By employing descriptive statistics, this study found that challenges of design management practice included a lack of a structured and explicit design process and design information production and flow, as well as unimproved design planning, lack of design management tools and techniques and implementation by an inexperienced team. It mostly exhibited unsatisfactory level of design management disciplines, and various barriers included tools poorly deployed into industry practice, deficient resources in quality or quantity, and the inability to have a design checking system. There are also difficulties areas in terms of improvement needs on better managing design process include of having adequate design time increasing specialized design professions, to recognize design is as a process. Thus, the study concluded that these organizations created a low-level design management practice definition that involves setting high-level project milestones or gateways that the team can work towards. Accordingly, this study suggests that organizations must be cultured about the importance of the design process in delivering value to the whole project, how the way they work affects the design process, how they can contribute to the design and consequentially the whole project process. Therefore, implementation of a design management tool or practice must include and educate at all levels within an organizations and project team to ensure it is taken up in practice. Keyword: Design, Management, Practice, Challenges, Issues, Improve efficiency, Timely delivery
Developing BIM-Enabled Built Asset Facility Information Management System: A Case of Public Universities In Addis Ababa
(Addis Ababa University, 2022-06-01) Tamiru Mengst Habtu; Asregedew Kassa Woldesenbet (PhD)
Facilities management (FM) is a discipline comprising various processes, activities and maintenance services to support the main functions of built asset facilities. It demands sets of comprehensive information. Lack of information is one of the major challenges in the O & M phase of the built asset. The emergence of Building Information Modelling (BIM) systems, helped to solve the issue and improve the efficiency of built asset facilities management. Currently, the public universities have no data/information and related documents on the built asset facilities. The built asset facilities information management system is conventional and has a major difficulty. Therefore, it is necessary to study BIM Enabled Built Asset Facility Information Management System. This study aims to explore the current practice of built asset facility information management systems in public universities and identify the required information for BIM-enabled built asset management. The importance of identifying the required information is to facilitate the FM decision-making process. Finally, this study aims to develop the conceptual framework of a BIM-enabled built asset facilities information management system. The study adopted both descriptive and exploratory types of research. A multiple-case study was conducted on the three public universities in Addis Ababa. Data collection and analysis were based on an extensive literature review of similar studies followed by a semi structured interview, document analysis, and observation. The study adopted both quantitative and qualitative methods. All interview, document analysis, and observation data were analyzed using the thematic and statistical analysis method. The study findings indicated that the FM office in public universities didn’t have the data or information of the old built asset facilities but to some extent, they have as-built drawings for recently completed projects. So, the lack of information has an impact on the time and the cost of the O & M process of the built asset. The FM office practiced the conventional method to capture, visualize, transfer and manage the built asset information. Currently, all the basic, technical, managerial, commercial, financial, and legal information are extremely relevant for built asset management in the selected public universities. Accordingly, to manage the built asset information, the FM office in public universities needs a single platform. As a result, a BIM-enabled FM conceptual framework was proposed. Finally, the future study should further develop the proposed framework and adopt it in public universities. Keywords: FM, Built asset, BIM, BIM-FM Integration, Information requirement, information management system, Asset Information Modeling (AIM).
Developing BIM-Enabled Built Asset Facility Information Management System: A Case of Public Universities in Addis Ababa
(Addis Ababa University, 2022-06-01) Tamiru Mengst Habtu; Asregedew Kassa Woldesenbet (PhD)
Facilities management (FM) is a discipline comprising various processes, activities and maintenance services to support the main functions of built asset facilities. It demands sets of comprehensive information. Lack of information is one of the major challenges in the O & M phase of the built asset. The emergence of Building Information Modelling (BIM) systems, helped to solve the issue and improve the efficiency of built asset facilities management. Currently, the public universities have no data/information and related documents on the built asset facilities. The built asset facilities information management system is conventional and has a major difficulty. Therefore, it is necessary to study BIM-Enabled Built Asset Facility Information Management System. This study aims to explore the current practice of built asset facility information management systems in public universities and identify the required information for BIM-enabled built asset management. The importance of identifying the required information is to facilitate the FM decision-making process. Finally, this study aims to develop the conceptual framework of a BIM-enabled built asset facilities information management system. The study adopted both descriptive and exploratory types of research. A multiple-case study was conducted on the three public universities in Addis Ababa. Data collection and analysis were based on an extensive literature review of similar studies followed by a semi-structured interview, document analysis, and observation. The study adopted both quantitative and qualitative methods. All interview, document analysis, and observation data were analyzed using the thematic and statistical analysis method. The study findings indicated that the FM office in public universities didn’t have the data or information of the old built asset facilities but to some extent, they have as-built drawings for recently completed projects. So, the lack of information has an impact on the time and the cost of the O & M process of the built asset. The FM office practiced the conventional method to capture, visualize, transfer and manage the built asset information. Currently, all the basic, technical, managerial, commercial, financial, and legal information are extremely relevant for built asset management in the selected public universities. Accordingly, to manage the built asset information, the FM office in public universities needs a single platform. As a result, a BIM-enabled FM conceptual framework was proposed. Finally, the future study should further develop the proposed framework and adopt it in public universities. Keywords: FM, Built asset, BIM, BIM-FM Integration, Information requirement, information management system, Asset Information Modeling (AIM).
Developing Bim-Enabled Built Asset Facility Information Management System: A Case of Public Universities In Addis Ababa
(Addis Ababa University, 2022-06-01) Tamiru Mengst Habtu; Asregedew Kassa Woldesenbet (PhD)
Facilities management (FM) is a discipline comprising various processes, activities and maintenance services to support the main functions of built asset facilities. It demands sets of comprehensive information. Lack of information is one of the major challenges in the O & M phase of the built asset. The emergence of Building Information Modelling (BIM) systems, helped to solve the issue and improve the efficiency of built asset facilities management. Currently, the public universities have no data/information and related documents on the built asset facilities. The built asset facilities information management system is conventional and has a major difficulty. Therefore, it is necessary to study BIM Enabled Built Asset Facility Information Management System. This study aims to explore the current practice of built asset facility information management systems in public universities and identify the required information for BIM-enabled built asset management. The importance of identifying the required information is to facilitate the FM decision-making process. Finally, this study aims to develop the conceptual framework of a BIM-enabled built asset facilities information management system. The study adopted both descriptive and exploratory types of research. A multiple-case study was conducted on the three public universities in Addis Ababa. Data collection and analysis were based on an extensive literature review of similar studies followed by a semi structured interview, document analysis, and observation. The study adopted both quantitative and qualitative methods. All interview, document analysis, and observation data were analyzed using the thematic and statistical analysis method. The study findings indicated that the FM office in public universities didn’t have the data or information of the old built asset facilities but to some extent, they have as-built drawings for recently completed projects. So, the lack of information has an impact on the time and the cost of the O & M process of the built asset. The FM office practiced the conventional method to capture, visualize, transfer and manage the built asset information. Currently, all the basic, technical, managerial, commercial, financial, and legal information are extremely relevant for built asset management in the selected public universities. Accordingly, to manage the built asset information, the FM office in public universities needs a single platform. As a result, a BIM-enabled FM conceptual framework was proposed. Finally, the future study should further develop the proposed framework and adopt it in public universities. Keywords: FM, Built asset, BIM, BIM-FM Integration, Information requirement, information management system, Asset Information Modeling (AIM).
Developing Built-Asset Maintenance Maturity Rating Model for Public University Buildings in Ethiopia
(Addis Ababa University, 2022-06-01) Zewdu Seblework Tafesse; Asregedew Kassa Woldesenbet ( PhD)
In Ethiopia, a significant amount of funds is invested in mega projects like dams, highways, railways, airports, power plants, public buildings, etc. These investments are showing unprecedented expansion which, by some estimates, has shown a 9-fold growth of the GDP of the construction sector. However, once these projects, be it mega or otherwise, are completed and ownership is transferred, the post-construction phase of asset management is noticeably neglected, if not ignored totally. And this national reality is witnessed in the building facilities of public universities in the country. In this research paper, a modest attempt is made to examine the building maintenance practice of the nation, factors affecting proper maintenance management, and challenges faced. A thorough investigation of the current situation of building facilities of public universities in Addis Ababa is made. Along with that significant focus is made to develop a viable maturity rating model for building maintenance management of public universities in Ethiopia. A multi-case study was conducted on the three public universities in Addis Ababa. The research approach of this study is both deductive and inductive research. Both quantitative and qualitative data are collected from primary and secondary data sources by document analysis, observation, and semi-structured interviews of the FM office and project office representatives of each public university. All the semi-structured interviews, document analysis, and observation data were analyzed using the thematic and statistical analysis method. The three main objectives of this study are effectively addressed. When it comes to identifying factors that influence the proper practice of building maintenance management in public universities in Ethiopia, the main factors were grouped under seven categories and five critical factors. Finally, a built asset maturity rating model is proposed based on the weights calculated by DEMATEL, MCDM analysis weights that can be used as a self-assessment tool by public universities in Ethiopia. Keywords: Facility Management, Built Asset, Maintenance, Maturity Rating Model, DEMATEL

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